1). Load the Knoppix DVD
2). Reboot the server
3). Connect with the KVM console in your Cloud Panel.
4). Once connected open a Terminal.
5). Run:
su
passwd
/etc/init.d/ssh start
6). Connect with SSH to make things easier.
7). Run commands:
vgchange -ay
mount -r /dev/mapper/centos-root /mnt
mount -o remount,rw /mnt
8). Your data is now mounted under /mnt
root@Microknoppix:/mnt# df -h
/dev/mapper/centos-root 78G 8.0G 70G 11% /mnt